URLs with invalid language path segment are redirected to default language
Given a site configuration with two languages and their base paths '/dk/' and '/en/' exist.
Given '/dk/' is the path for the default language
When a URL without path is requested ('/')
I would expect to see a 307 redirect to '/dk/', which is what also actually happens.
When a URL is requested that has no matching language segment (e.g. '/foo/')
I would expect to see a 404 response.
What actually happens is a 307 redirect response to '/dk/'.